The booklet Kleur als basis voor geluk (English: “Color as the basis for happiness”) was authored and designed by Merijntje Betzema, an image and color consultant from Zutphen, the Netherlands.
The words Kleur (“color”) and Geluk (“happiness”) are set in Troix, using the many uppercase ligatures that this font contains.The middle part of the title is added in Dolly Italic, and the small parts in all-caps Source Serif.